UPS Battery Backup

I preformed a test today. Killed the main breaker to the entire house as a test to see how the wifi router, start9 and all my miners would react. I’m glad I did as I identified problems with the miners, wifi address with the providers modem and start9.

First. - I noticed several of the local network IP’s never came back online. 2 out of 5 miners needed to be setup from scratch with new ip’s. That was interesting.

Second - some of the services on the start9 needed to be stopped, restarted to sync. Namely Datum, LND and Alby

So - it looks like I need some type of UPS backup (pure sine I imagine) for the Start9 and the XFii modem. Since I have a surge protector power bar mounted in a mini rack that contains all the miners that I have I cant string surge protector devices together so I’m thinking another UPC without surge protection for the miners.

What you think folks. Any experience with UPC? How about @paul …any expereince?

Coincidentally, I happen to be working on a video series related to this. The first one will be reviewing a particular model that is widely available and on the lower-end as far as cost. My ultimate goal will be to see if I can hook into the USB callback interface to have it run a script that shuts down the connected server. I hadn’t considered also throwing ASICs into the mix, but that would be good to add as well.

1 Like


This is the UPS model I’m testing with (ignore the wifi router)

1 Like

Yep.I looked at that one for sure. Would need two as server/wifi to far from miners.

Is the 360 watts…is that constant power just plugged in?? That is as much as 3 Nano S3’s on high (18 Th/s). :crazy_face:

Good point – ASICs are going to be a problem for a lower-rated device like this one (I was origionally looking at this from just the minPC + router perspective). The 360 watts is constant power when running off the battery. Basically, the APC guarantees the inverter can source ~360 W of real power for the entirety of the discharge curve (until the “low-battery” cutoff) at 25 °C ambient. The batteries will be exhausted in ~3 min at that load, but the inverter will not trip on over-temperature or current-limit as long as you stay at or below 360 W.

Ah roger. Make since that is the draw load in backup mode. Thanks for the clarity. Had me a bit worried if I need to buy stock in Xcel to offset my energy costs :wink:

I’d have to recreate the IP problem to get a better understanding of the issue there. My initial thought would be to configure all of the routers to reserve specific local IPs based on each device’s mac address. That way when the routers come back up and devices start to connect, it doesn’t just hand out IPs willy-nilly.

Yep. Worst mistake on planet. I rebooted my Start9 server and now it wont come back online. It powers up but no comms to router now. The local IP assigned to it is not seen in a LAN scan either. Thank goodness I backed it up before rebooting. Very depressing.

@Fletcher soon as I get it fleshed out I will be back

Do you have a monitor, keyboard, and mouse that you can hook up to the server? If so, you should be able to look up the IP under System > About > Web Addresses > enp2s0 (IPv4). It would also give you an opportunity to rule out some other bigger problem with the server.

I know the IP it should be along with it’s mac address. Those are reserved in my DHCP/Reserved IP records on my gateway. I can also see the enp2s0 (IPv4) IP address and “LAN name” in the About area on my Firefox page. (That might be cached info though).

I’ll have to dig real deep for a wired keyboard though. HDMI out - no problem, mouse- no problem. keyboard - Problem

First look and experience says to me the Ethernet! port has failed on the Sever One

Thanks.

Ah, that sucks. I think you would need a keyboard to enter your password to log in. Does it ask you for the login, or are you able to bring up the list of services?

You mentioned being able to get to the page in Firefox. Is that on the server itself, or on another computer? If it is on another computer, you can rule out the page being cached by opening it in a new private window. If it is on the server, then you can check if the IPv4 you see under enp2s0 is cached or if it is correct. To do that, open a terminal and enter “ping [ip address]”. If it gets replies, then next open a new browser tab and enter “http://[ip address]”. If that opens the interface for your server, then it is the correct IP and not cached.

The server itself…I did get everything I needed…I’m looking at server screen now…

But first…when I ping the IP I get Request timeout for icmp_seq

Maybe share screen shot here and can delete later if it has private info…?

Better to DM it to me in the chat window I think.

Agreed…sent you a shot of main screen